MCQ
Rare-earth elements are exhibited by
- ✓At. No. $58$ to $71$
- BAt. No. $21 $ to $30$
- CAt. No. $39$ to $ 71$
- DAt. No. $81$ to $91$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$PC{l_5}\, \rightleftharpoons \,PC{l_3}\, + \,C{l_2}\,;\,{K_C} = \,0.0414\,mol\,{L^{ - 1}}$
| Molecule | $P-X$ (axial) bond length | $P-X$ (Equitorial) bond length |
| $PF_5$ | $a$ | $b$ |
| $PF_4CH_3$ | $c$ | $d$ |
| $PF_3 (CH_3)_2$ | $e$ | $f$ |
| $PCl_5$ | $g$ | $h$ |
According to given information choose the incorrect order of bond length